JPS6346905A - working machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a working machine capable of running on rails.

[Prior Art] Generally, rails are constructed by laying ballast to create a roadbed, and then laying rails on the roadbed via sleepers.

This ballast acts as a buffer for the load acting on the rail, but in order to maintain its function and maintain the drainage function of the subgrade, it must be compacted as appropriate and must be replaced periodically.

Conventionally, track maintenance workers used titan bars to compact the ballast, and when replacing ballast, workers removed and laid the ballast, and then compacted it with titan bars manually. This is done by

[Problems to be Solved by the Invention] However, the above-mentioned roadbed safety work is performed using a titan bar, and the titan bar itself is a vibrating machine and the working conditions are heavy labor. In addition, since all work is done manually, security work requires a large amount of labor, making it difficult to secure personnel and resulting in poor work efficiency.

In view of these circumstances, the present invention provides a working machine that is capable of running on rails, and aims to mechanize the security work of the Millrail.

[Means for Solving the Problems] The present invention provides a working machine having an upper revolving body and a lower traveling body, in which a rail traveling bogie having drive wheels can be attached to and detached from the lower traveling body, and the lower traveling body is connected to the lower traveling body by the rail traveling vehicle. This vehicle is characterized by being able to lift the traveling body.

[Function] When traveling on the undercarriage itself, the front and rear wheels are cut off, and when traveling on rails, each wheel is fitted to the rail, and the undercarriage is lifted and cut off.

[Example] The present invention will be described in detail below with reference to the drawings.

First, the present invention will be explained in detail with reference to FIG.

The working machine is based on a working machine such as a backhoe having a lower traveling body and an upper revolving body, and has a rail running function added to the working machine.

A rail running bogie 2 is removably attached to the lower surface of a running frame (not shown in FIG. 1) of the lower running body l. The rail running bogie 2 has arms 3 and 4 that can be raised and lowered in the front and rear, respectively.
Both arms 3.4 are equipped with arm cylinders 5 and 6.
(one of which will be described later) allows it to be raised and lowered. A running wheel unit 7.8 is further attached to the tips of both arms 5.6, and one running wheel unit 8 is provided with a drive motor so that it can be driven.

A boom 10 is provided on the upper revolving body 9 so as to be able to be raised and lowered by a boom cylinder 11, and an arm 12 rotatably provided at the tip of the boom is rotatable by an arm cylinder 13. Further, a horizontally extending bar 14 is fixed to the tip of the arm 12, and tied bars 15 are attached to both ends of the bar 14.

In Fig. 1, 16 indicates a roadbed, 17 indicates sleepers, and 18 indicates a rail.

Next, referring to FIGS. 2 and 3, the rail traveling vehicle 2 will be explained.

The center frame 19 is removably attached to the lower surface of the traveling frame 20 of the lower traveling body via a pin 21, and two pairs of brackets 22 are provided protruding from the front and rear end surfaces of the center frame 19, respectively. .22 to bottle 2
Arm 3.4 is attached via 3.23 so that it can be raised or lowered.

At the end of each arm 3.4 there is a base plate 25.
28 is fixed, and an arm cylinder 5.6 is provided to span between the arms 3, 4 and the traveling frame 20. The above-mentioned running wheel units 7.8 are respectively mounted on the base plates 25.26.

The drive side (rear side) wheel unit 8 has the following configuration.

Attach shaft supports 27, 28 to both ends of the base plate 2B. A hydraulic motor 32 is fixed to one shaft support 27,
The rotating part of the hydraulic motor 32 is inserted into the rail running wheel 29, and the inner flange 30 of the running wheel 29 and the rotating part flange 31 are fastened with bolts. Further, a joint flange 34 having a shaft fitting part 33 concentric with the hydraulic motor 32 is fixed to the inner surface of the running wheel 29.

The axle 35 is fitted into the shaft fitting portion 33 of the joint flange 34 and keyed, and the other end of the axle 35 is supported by the other shaft support 28 via a bearing 36. Further, a running wheel 37 is provided at the other end of the axle 35 in a portion that protrudes from the shaft support 28.
mating and keying. Therefore, when the traveling wheel 29 is rotated by the hydraulic motor 32, the joint flange 34,
The running wheels 37 rotate together with the running wheels 29 via the axle 35.

Next, the free wheel side (front side) wheel unit 7 will be explained.

Shaft supports 28.28 are attached to both ends of the base plate 25, and an axle 38 is rotatably supported by the shaft supports 28 via bearings 36. Traveling wheels 37.37 are attached to both ends of the axle 38.
Fitting the key to join.

Next, the operation will be explained.

When compacting the roadbed 16, a bar 14 is attached to the tip of the arm 12 as shown in FIG. 1, and tie compactors 15 are attached to required positions of the bar 14 (at both ends in this embodiment).

Arm cylinders 5, 6 raise arm 3.4 to keep each running wheel 37.29 off the ground.

The lower traveling body 1 is driven to move to the beginning or end of a railroad crossing or rail. After aligning the rail 18 and each traveling wheel 37.29, both arm cylinders 5.6 are extended to fit each traveling wheel 37.29 onto the rail 18, and further extended to connect the lower traveling body 1 and the ground ( (top surface of the rail). In this state, the working machine is supported by front and rear wheel units 7.8.

By operating the hydraulic motor 32 and rotating the traveling wheels 29, 37 of the wheel unit 8, the working machine can move forward or backward to a predetermined compaction area.

Further, by operating the boom cylinder 11 and the arm cylinder 13, the compaction work is performed by the tie packer 15 by raising and lowering the boom, rotating the arm, and rotating the upper revolving structure 9. This compaction work position can be changed accordingly by running on the rails with the wheel unit 7.8;
Compaction work can be performed at any desired location and within any desired range.

Note that by attaching work equipment other than the titan bar to the tip of the arm 12, other safety work can be performed.

In addition, when performing work other than security work, such as excavation work,
If you remove the rail running truck and replace the working equipment at the end of the arm with a packet, it can be used as a normal backhoe.

Furthermore, in the drive side wheel unit, the running wheels 29.3
7 may be driven as one unit via the axle 35, or only the running wheels 29 may be driven individually.

In the above embodiment, the arm to which the wheel unit is attached is raised and lowered to move the lower traveling body up and down, but the arm to which the wheel unit is attached is fixed to a rail running bogie, and the rail running bogie is moved up and down. The lower traveling body may be grounded and grounded by attaching it to the frame via an elevating cylinder and moving the rail traveling vehicle and the lower traveling frame closer to each other and away from each other.

[Effects of the Invention] As described above, the present invention enables a working machine to run both on flat ground and on rails, and in particular, it is possible to mechanize security work related to rails and improve the efficiency of the work. .

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of an embodiment of the present invention, FIG. 2 is a plan view of a rail traveling bogie in the embodiment, and FIG. 3 is a front side view of the same. 1 is a lower traveling body, 2 is a rail traveling bogie, 3.4 is an arm, 5.6 is an arm cylinder, L8 is a traveling wheel unit,
29.37 indicates the running wheels.

Claims (1)

[Claims] 1) A working machine having an upper rotating body and a lower traveling body, characterized in that a rail traveling body having drive wheels can be attached to and detached from the lower traveling body, and the lower traveling body can be lifted by the rail traveling body. working machine.